Testo 635-2 Thermohygrometer with Air Moisture - 0563 6352


0563 6352

Estimated Delivery Between and .

American express Apple pay Diners club Discover Google pay Master Paypal Shopify pay Visa



The testo 635 offers the possibility of testing and analyzing air humidity, material moisture, U-value and the dewpoint in compressed air systems.

  • Measurement of air moisture, material equilibrium moisture, pressure dew point
  • Dual Probe Measurement
  • U - Value probe connection
  • Internal Memory 10,000 Readings

The Testo 635-2 is an instrument designed for measuring air moisture, material equilibrium moisture and pressure dewpoint in compressed air systems. Moisture characteristics can be recorded in the instrument memory and analysed and displayed in graphics or tables. Precision probes up to -60°C tpd are available to check pressure dewpoint in compressed air systems.


Please Note: The instrument can only be commissioned with a probe. These are available separately.



  • Measurement of air moisture, material equilibrium moisture, pressure dew point
  • Instrument memory for up to 10,000 readings
  • PC software for analysis, filing and documentation of measurement data
  • Direct display of material moisture due to freely settable characteristics curves (based on equilibrium humidity)
  • Storage of single measurements or measurement series by measurement location
  • Fast access to the most important functions via user profiles
  • U-value probe connection option
  • Protection class IP54
Rugged, practical, easy to use

In addition to all the other measurements, the testo 635-2 temperature and moisture meter can also display min, max and mean values and calculate the dew point difference between the indoor air and the surface of the wall. This allows you to analyze levels of moisture at ceilings and walls. Individually configured characteristic curves ensure that the material moisture content is displayed reliably.

Both the meter and the menu guide are simple and comfortable to use. A backlit display allows you to read the measurements in the dark or poor lighting and a strong protective case protects the meter effectively against any accidental knocks and bumps.

Saving, transferring and printing out data

Save measuring sites and allocate the measuring data to the relevant site. Create individual user profiles to perform parallel long-term and material moisture measurements. Save up to 10,000 readings – individual measurements and measurement series – to your meter. The USB cable in the scope of supply can be used to connect your moisture meter to your PC or laptop and the software allows you to log and archive your measuring data comfortably and easily.


Ideal for the following applications:

  • Localising mould
  • Measuring material moisture
  • Monitoring drying processes
  • Monitoring production and storage conditions
  • U-value measurement in old buildings
  • Measuring wood moisture quickly and non-destructively


  • Testo 635-2 temperature and moisture meter
  • PC software
  • USB data cable
  • Batteries
  • Calibration protocol

NOTE: a sensor (not in scope of supply) is required to operate the meter.


  Temperature - NTC Temperature - TC Type K (NiCr-Ni) Humidity - Capacitive Absolute Pressure
Measuring range -40 to +150 °C -200 to +1370 °C 0 to +100 %RH 0 to 2000 hPa
Accuracy ±0.2 °C (-25 to +74.9 °C)
±0.4 °C (-40 to -25.1 °C)
±0.4 °C (+75 to +99.9 °C)
±0.5 % of mv (Remaining Range)
±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range)
See probe data See probe data
Resolution 0.1 °C 0.1 °C 0.1 %RH 0.1 hPa


General technical data
Operating temperature -20 to +50 °C
Storage temperature -30 to +70 °C
Product-/housing material ABS / TPE / Metal
Battery type Alkali manganese, mignon, type AA
Battery life 200 h
Dimensions 220 x 74 x 46 mm
Weight 428 g


Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.


Related Items